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Contact Info

+1-612-231-4949

denisostroushko1@gmail.com

LinkedIn Profile

denisostroushko1.github.io

github.com/denisostroushko1

Technical Skills

Analytical Skills

Frequentist and Bayesian Statistics

Predictive and Inferential Modeling

Correlated and Survival Outcomes

Observational Data Causal Inference

Study Design, Cohort Construction

Simulation Studies

Data Science Skills

Static Reports, Interactive ShinyApps

ggplot and plotly Visualizations

Pipelines from Source Data to Final Products

Big EHR, Claims, Insurance Data Processing

Strong RX, CPT, Diagnosis Codes Understanding

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Last updated on 02/23/2024

Main

Denis Ostroushko

Education

University of Minnesota

MS Biostatistics 3.845 GPA

Minneapolis, MN

Expected 2024 - 2022

University of Minnesota - Morris

BA Mathematics, Statistics 3.43 GPA

Morris, MN

2019 - 2015

Professional Experience

Healthcare Analyst I & II

Medica

Minneapolis, MN

August 2023 - June 2019

  • Collaborated with business owners to assess member assistance programs. Used statistical models and simulations to understand cost savings distribution. Developed a strategy, resulting in an additional $1,000,000 annualized savings.
  • Collaborated with member identification team to improve risk models for hospital readmission. Developed a set of predictive models. Best classifier improved AUC score by 15%.
  • Automated actuarial completion factors model using SAS. Improved estimation granularity, reduced prediction error by 35%. Reduced delivery time for the final product.
  • Led the introduction of benchmarks from Milliman proprietary software. Improved identification of cost savings opportunities and increased strategy transparency.

Research Experience

Graduate Research Assistant

Master’s Thesis

Minneapolis, MN

Present - August 2023

  • Worked with Dr. Julian Wolfson to evaluate the impact of cohort definition on the analysis results.
  • Used data from the Fairview Health System to conduct the study. Created a list of cohorts with varying patient inclusion criteria. Illustrated that cohort definition can result in vastly different analysis results and conclusions.

Graduate Research Assistant

Multiview Data Integrative Analysis of Progression to AD

Minneapolis, MN

Present - August 2023

  • Developed a pipeline to identify important predictors of Alzheimer’s Disease (AD) from lipidomics ADNI data. Generalized pipeline to other genomics data sets.
  • Developed and compared multiview data integration methods (SIDA, iDeepViewLearn) to improve detection of at-risk of AD patients among ANDI cohort population.

Research Assistant

Truckers & Turnover Research Project

Morris, MN

2019 - 2018

  • Managed scripts to produce publication materials. Presented results of medical cost analysis for truck drivers with OSA as a poster. Helped develop a bootstrap simulation to estimate variance of cost differences.